What is acetyl-L-carnitine and what is worth knowing about it? Let's start with carnitine itself. It is a dipeptide made up of two amino acids. In the body, it can exist in the form of the aforementioned acetyl-L-carnitine or L-carnitine. The body is able to produce small amounts of it on its own. Carnitine can also be supplied from food, and its sources are mainly meat and other animal products. It can exhibit numerous properties. It is of interest particularly to physically active people.NOW Foods Acetyl L-carnitine powderWhen looking for a high-quality dietary supplement with acetyl-L-carnitine, it is worth looking at the NOW Foods brand. This is a reputable manufacturer that also specialises in producing supplements tailored to the needs of physically active and intensively trained people. The supplement variant you are now reviewing comes in powder form, but swallowable capsules are also available.